Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study, well documentetd

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report Date:
1994

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
yes
Type of method:
other: effusionsmethod and dynamic method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Chem. name 5-[3-(1-Ethoxy-ethoxy)-3-methyk-pent-4en-1inyl]-2,4,6,6-tetramethyl-5,6,7,7a-tetrahydro-benzil[1,3]-dioxol-5-ol
name of test material (as cited in study report): Asta-C-15-Acetal
Analytical purity: 90,6% all identifiyed C-15 components
2% C9-Acetal
0,65% C6 Acetal
2% water


Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0 Pa
Remarks on result:
other: calculated value based on measured value
Temp.:
50.6 °C
Vapour pressure:
0.014 Pa
Remarks on result:
other: measured value

Any other information on results incl. tables

ln(p/Pa) = 36,3658 -13162,7/(t(K)

temperature
t[°C]
pressure (exp.)
p[Pa]
pressure (calc.)
p[Pa]
20,00   0,00020
25,00   0,00042
40,70 0,0038 a 0,0038
50,00   0,013
50,60 0,014 a 0,014
60,80 0,049 a 0,047
71,00 0,137 a 0,152
124,50 29,0 b 26,200
131,50 50,0 b 46,400
136,50 67,0 b 66,300
141,60 105,0 b 102,400
150,60 194,0 b 201,000
156,60 300,0 b 310,100
164,50 506,0 b 359,100

a = Effusionsmethode

b = dynamic method

Applicant's summary and conclusion